Title : THE ACCURACY OF RANGE ESTIMATION ON A PPI WITH RESPECT TO THE DISTANCE OF THE TARGET FROM RANGE RINGS.

Descriptive Note : Revised ed.

Corporate Author : JOHNS HOPKINS UNIV BALTIMORE MD

Report Date : 01 MAY 1958

Pagination or Media Count : 11

Abstract : Four radar operators estimated the location of targets on simulated PPI's. Their data were analyzed for accuracy of range estimation as a function of target position with respect to range rings. The grouped data show that the average accuracy of estimation changes in a complex fashion as the distance from the range ring to the target increases. In general, targets near range markers and those near the center of the inter-ring distance are judged more accurately than those at other places. (Author)